JPS61228169A - Submersible delivery valve - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Background of the invention]

The invention of B relates to a discharge valve that can be submerged in liquid. In particular, U.S. Pat. No. 3.60 describes a multiple jet valve.
See No. 5,787. This US patent describes a number of improvements to the basic valve. Multiple jet valves are widely used, particularly for controlling the flow of liquids. The main use is for hydropower planning and regulating water in hydropower planning. in this case,
The release of large amounts of water must be carefully regulated without disturbing the environment or damaging the valve itself. In this particular operation, additional problems arise, which it is the object of this invention to improve. One problem is that multi-jet valves have a number of carefully shaped orifices through which the expelled liquid passes, many or all of which are relatively small. If the liquid is relatively clean, there is no impediment to the operation of the valve. When the liquid contains debris of various types, the debris tends to become stuck or lodged in the various orifices or holes and prevent free axial movement of the valve parts.

【Example】

In the embodiment of the invention shown here, a generally circular, cylindrical valve body 6 is symmetrical about a principal axis 7, with an end used for attaching the valve body to a connecting conduit, such as a water supply pipe. I have part 8. A flange 9 and holes 11 in the flange are provided for suitable coupling members. Flow enters the body 6 in the direction of arrow 12 from the attached piping. A body 6 extends along an axis 'a7, and a plurality of webs or ribs 16 (four for IF) extend over this body. These webs or ribs are arranged radially with respect to the axis 7 and extend in some parts to the outer wall 6 of the body, but in others they terminate earlier, leaving an outlet opening 17 at the periphery of the body. . The web 16 is a turning cone 18
It is convenient that it is combined with The cone is coaxially arranged and extends along the axis, terminating in a distal seat 21 bounding the aperture 17. The seat 21 is generally circular and widens along its periphery to receive a bearing ring 22 of L-shaped cross section. This ring overlaps the two sides of the seat 21 and is fixed in place by a number of removable coupling members 23. To prevent the same leakage from the seat and ring, 0-
Conveniently, a ring 24 is provided, captured between the 7 flange of the seat 21 and the flange of the ring 22. Connecting member 2
By removing 3, the bearing ring can be easily pulled out in the axial direction. A multi-jet sleeve 31, also of generally circular and cylindrical construction, coaxial with the body relative to the main axis 7, is designed to act by axial movement relative to the body 6. The multiple jet sleeve has a projecting peripheral flange 32 into which a drive rod 33 is engaged and removably secured and extends to the actuating means. This actuating means is not shown in the drawings, but is equivalent to actuating means 48 of the above-cited US patent. The action of the actuating means is to transmit a force through the rod 33 and move the flange 32 and thus the multi-jet sleeve 31. A suitable packing 34 is arranged between the body and the sleeve. This packing has a standard configuration, with connecting screws 3
It is positioned and removed by using 6. A portion of the multi-jet sleeve is drilled with a number of special flow holes 42. The individual axes 43 of these holes are axially and circumferentially spaced apart as described in the above-cited US patent. This flow hole is preferably tapered, with a smaller diameter on the outside of the sleeve and a wider diameter on the inside of the sleeve, accelerating the fluid through the hole from the inside of the sleeve to the outside. It is designed to form a jet. Sleeve 31 passes through holes for the flow of multiple jets and terminates in a terminal flange 46. Additionally, an inner packing ring 47 sits inside the multi-jet sleeve and is located near the outlet 17. The packing is held in place by radial bolts 48, with a packing ring or O-ring 49 exposed on its downstream face. To explain the operation of this structure, starting from the closed state of the valve shown in FIG. Liquid flow from the valve is obstructed. Actuation of the actuating mechanism 33 to the right in FIG. 1 causes a corresponding translation of the sleeve to the right and the number of flow holes 42 communicating with the outlet 17 increases progressively. A progressively increasing number of energy dissipating jets are emitted and flow to the outside of the sleeve. If desired, such a jet may simply dissipate into the surrounding medium, ie the atmosphere or water, but in some cases it may be ejected into the interior of the shride 51, shown partially cut away. The shride extends from the flange 32 and typically extends the desired length to intercept the exiting jet. If appropriate, there will be substantial ejection of liquid through the flow holes, but if some or more holes become obstructed by debris in the fluid, the sleeve may be retracted toward its closed position. All you have to do is In this case, the debris projecting inwardly towards the axis through any one or more flow holes is carried along with the sleeve to the left in FIG. 1. Debris strikes the sharp or sharp peripheral corners or rims 52 of the bearing ring 22 . The sharp corners of the bearing ring, in cooperation with the edges of the flow holes (even if these edges are slightly rounded), act as shears and tend to cut or soften protruding debris. The debris is then dislodged or severed enough so that it flows out with the subsequent discharge jet and no longer blocks the opening. In practice, when one or more of the various multiple jet apertures become clogged, in order to clear the aperture of the obstruction,
It has been found that it is only necessary to translate the sleeve relative to the body for a portion of a cycle, or for a complete cycle or several cycles.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of a partially opened valve according to the present invention;
2 is a detailed view of the valve of FIG. 1 in the closed position; FIG.

[Explanation of main symbols]

6...Body 7...Main axis line 16...Web 17...Exit opening 18... direction change cone 21...za 22...Bearing ring 23...Connecting member 31...Multiple jet sleeve 33... Drive rod 34...Packing Engraving of drawings (no changes to the content) Procedural amendment (Shu 9 1. Display of incidents Special application No. 60-66356 2) Name of the invention submersible discharge valve 3. Person who makes corrections Relationship to the incident: Patent applicant Name: CM B Industries 4, Agent

Claims (4)

[Claims] (1) a body symmetrical about a principal axis and having an inlet on said principal axis, a coaxial circular seat, means for attaching said seat to an end of said body, and a connection between said inlet and said seat; means for defining a radial outlet opening into said body, and a plurality of radial flow holes being drilled therein, each hole having a radial axis and extending axially from the other holes. a coaxial multi-jet sleeve slidably mounted on the seat and on the body; the sleeve being moved axially relative to the body to inject a selected number of the jets; means for establishing communication between the bore and the opening; packing means disposed on the sleeve for sliding engagement with the body; a submersible discharge valve having a peripheral bearing ring in sliding engagement with the inside of said sleeve across a hole in said sleeve. (2) In the submersible discharge valve according to claim (1), the bearing ring has a pointed edge which acts together with the edge of the bore as a shear for the material discharged from the bore. submersible discharge valve. (3) In the submersible discharge valve according to claim (1) or (2), a stopper is provided on the inner periphery of the sleeve.
A submersible discharge valve having a ring and a lateral surface such that the stop ring abuts the bearing ring. (4) In the submersible discharge valve according to claim (3), the stopper ring is provided with a peripheral seal provided on the lateral surface so as to be in contact with the bearing ring. Possible discharge valve.